Improvement in corn-planters



Y S. WRIGHT.

I Corn-Planters, Y, N0.157,262. Patented N0 v.24,1874..

f UNITED STATES PATENT OFFICE.

SAMUEL WRIGHT, OF TROY, OHIO.

imPRovEMx-:NT IN coRN-PLANTERS.

Specicationvforniing part of Letters Patent No. 157,262, dated November24, 1874 g application filed April 28,1874.

To all ywhom it may concern:

Be it known that I, SAMUEL WRIGHT, of Troy, in the county of Miami andState of Ohio, have invented a new and useful Dropping Mechanism forCorn-Planters, of which the following is a specification:

My invention relates to an improvement in the dropping` mechanism of acorn -planter, having for its object to insure the dropping of the seedat the required intervals, to prevent clogging and the catching andbreaking of the kernels in passing to the spout under the valve.

The invention consists in the novel and peculiar construction of thedropping mechanism, and in the devices for operating the same, also, ina cut-o arranged to yield like a relief-valve when an extra large kernelpasses under it, to prevent the breaking of either the corn or thevalve, as more fully hereinafter set forth.

Figure 1 is a perspective view of the lower part of a hopper, with mydropper in position at the bottom thereof. Fig. 2 is a plan of the same,the cut-off plate being removed. Fig. 3 is a plan of the reciprocatingslide, everything above it being removed. Fig. et is an invertedperspective view of the rotary seed-plate, showing theratchet attachedto the under side thereof. Fig. 5 is a cross-section through the centerstud and the seed-hole at .r Fig. l. Fig. Gis a transverse verticalsection of the cut-off valve at y y, Fig. l.

In the drawing, A A represent the frametimbers ofthe dropper, upon whichis secured a hopper, B, at each end. O is a bed-plate, secured to andbetween the frame-timbers, its surface being sunken below their generalplane. a is a stud rising from the center of the bedplate. b b are twoangular stops rising from opposite sides ofthe bed-plate, in diagonalcorners of the hopper. D is a sliding plate lying on the bed-plate,reciprocated as often as is required by mechanism on the corn-planter,not necessary here to describe. The plate D is slotted, so as not tointerfere with the stud a and stops b b. c is the seed-hole through oneside of the bed-plate and frame. E E are two pawls, pivoted at d on thesliding plate. Each has a projection, c, on the back of the point end,which, when the plate is moved toward a stop, b, strikes the latter,throwing the point of the pawl inward and the tail outward, until thelatter is arrested by a stoppin, f, on the said plate, which holds thepawl in. position when the seed-plate is removed. On the heel of eachpawl there is an angular-faced stud, g. F is a diaphragm-plate, with alarge central opening. and also one corresponding with the seed-openingc. It is secured on top of the bed-plate sides. G is a rotatingseedplate, resting on the diaphragm F. Gast in one piece with theseed-plate G is a ratchet, G', which projects down through the openingin the diaphragm. The hub of Gr G is sleeved on the stud a, on which itrotates. The plate G is perforated with twelve equidistant openings, h,on the radius of the seed-hole c. On the periphery is a series ot'twelve teeth, i.

One of the pawls being in engagement With the ratchet, and theslide-plate moving in the direction of the point of the said pawl, theseed-plate will be rotated until one ot' its holes is over the hole c,through which it drops the seed contained in it. At this moment thefurther advance of the shifting plate is arrested by the heel of themoving pawl striking the stop b. At the same time the stud g on the heelof said pawl comes in front of a tooth, t', of the seed-plate, andprevents the latter from moving farther until the sliding plate has areverse movement imparted to it, when the other pawl imparts anothermovement to it in the same direction until the next hole is over `theseed-opening, as just described.

H is the cut-oil' plate in the bottom of the hopper, and supported justabove the seedplate. A circular opening, nearly equal in diameter to theseed-plate, is cut out of it, and a disk, H', of less diameter than therow of seed-holes, is secured by arched bridge-pieces thereto, being allcast in one piece, leaving an annular space over the seed-receptacles.At one side is a tangent-box, 7c, in which is tted a tiltingvalve-plate, l, pivoted between the sides by a transverse pin, m. Underthe rear end is a spiral spring, n, which keeps the front end depressedto the plane of the seed-plate directly over the hole c, which springyields and allows unusually large grains to pass under, while otherobstructions pass up its inclined surface.

desire I as described, with a rotary' seed-plate, G, having a ratchet,G', openings h, and teeth z', said teeth being,` arranged as described,so that the studs g on the pawls E E shall limit the motion oftheseed-plate G and a cut-off plate, H Hf, the several parts beingconstructed and arranged substantially as described and shown.

SAMUEL WRIGHT. Witnesses:

AUSTIN WAYMIRE, A. A. BOYER.

